The objectives of the study were to confirm that a single, 2.0-g dose of azithromycin sustained release (SR) was at least as effective to 10 days of oral levofloxacin 500 mg once a day, when used to treat adults with uncomplicated, acute bacterial sinus infections, and to evaluate the safety of both treatments.

Patients were included if they had a clinical diagnosis of acute bacterial maxillary sinusitis as demonstrated by presence of the cardinal signs and symptoms for a minimum duration of 7 days, a sinus X-ray (Water's view) confirming the clinical diagnosis of maxillary sinusitis, and 2 or more of following: fever, leukocytosis, frequent coughing, headache, nasal congestion, or post-nasal drainage.

Exclusion Criteria:

Patients were excluded if they were treated with any systemic antibiotic within 7 days prior to enrollment, had symptoms lasting for longer than 28 days, had 4 or more episodes of acute sinusitis within the preceding 12 months, had nasal or sinus surgery within 3 months prior (except for a diagnostic procedure), or complicated or nosocomial sinusitis.

Contacts and Locations

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study.
To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below.
For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00643409